When your clutch starts slipping or you're getting that familiar burning smell during heavy work, you need a disc that'll handle the heat and keep delivering power. This ceramic-faced disc with its five-paddle design is built for tractors that work hard day in and day out. The ceramic material grabs better than standard organic discs and won't glaze over when things get hot during loader work or heavy tillage. What You're Getting Ceramic friction material that handles high heat without fading Five-paddle design provides aggressive engagement for positive power transfer 13-inch size with 21 splines fits your input shaft perfectly Spring-centered hub reduces shock loads and smooths engagement OEM-quality construction that meets original equipment standards Built for Real Farm Work This disc is made for those mid-size Massey Ferguson tractors that do the heavy lifting around the farm. Whether you're running a 390 through muddy fields, using your 399 for hay work, or pushing your 4200 series tractor through long days of cultivation, this disc delivers the reliable power transfer you need when there's work waiting. Made to Last Ceramic friction material is what sets this disc apart from standard organic discs. It handles temperature extremes better, resists glazing when you're working the clutch hard, and maintains its grip even when things heat up. The sprung center hub absorbs driveline shock and helps extend the life of your transmission and final drive components. Good to Know This is a direct replacement for your original disc, so installation follows standard clutch service procedures. The ceramic material might feel a bit more aggressive when you first install it, but it'll smooth out after a few hours of operation. Consider replacing your pressure plate and release bearing at the same time - when one clutch component wears out, the others usually aren't far behind.